9956623 has 2 divisors, whose sum is σ = 9956624. Its totient is φ = 9956622.

The previous prime is 9956593. The next prime is 9956641. The reversal of 9956623 is 3266599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9956623 - 2⁵ = 9956591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9956423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4978311 + 4978312.

It is an arithmetic number, because the mean of its divisors is an integer number (4978312).

Almost surely, 2^9956623 is an apocalyptic number.

9956623 is a deficient number, since it is larger than the sum of its proper divisors (1).

9956623 is an equidigital number, since it uses as much as digits as its factorization.

9956623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 40.

The square root of 9956623 is about 3155.4117005551. The cubic root of 9956623 is about 215.1315077909.

The spelling of 9956623 in words is "nine million, nine hundred fifty-six thousand, six hundred twenty-three".